LX8221 Microsemi Corporation, LX8221 Datasheet - Page 2

• Manufacturer Part Number: LX8221
• Description: Dual 150ma Cmos Low Dropout Regulator
• Manufacturer: Microsemi Corporation

Copyright © 2000
Rev. 1.1a, 2006-01-19
VOUT1/VOUT2
VOUT1
Input Voltage (VIN1, VIN2) .......................................................................... -0.3V to +7V
Output Current (I
Operating Temperature Range .....................................................................-40 to +125 °C
Maximum Junction Temperature (T
Storage Temperature (T
Peak Package Solder Reflow Temp. (40 second max. exposure)................. 260°C (+0, -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Ground. Currents are positive into, negative out of specified terminal.
Junction Temperature Calculation: T
The θ
system. All of the above assume no ambient airflow.
VIN1/VIN2
P
ADJ (1, 2)
EN1/EN2
GND
DU
CB1
IN
THERMAL RESISTANCE
GND
CB1
N
JA
TM
AME
numbers are guidelines for the thermal performance of the device/pc-board
Plastic MSOP 8-Pin
OUT1
A B S O L U T E M A X I M U M R A T I N G S
+
-
Unregulated input supply voltage
Ground Pin
Enable control input: Logic high = Enable; logic low or open = Shutdown
Adjust pin. Connect a resistor divider to this pin to establish preferred output voltage.
Reference bypass input. Adding an additional external capacitor reduces output noise.
Regulated output voltage. Regulator stability is achieved with external capacitor of 1µF
, I
VREF
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
J
OUT2
) .............................................................................-65 to +150 °C
-
)................................................................................. 150mA
JUNCTION TO
CONTROL
THERMAL
T H E R M A L D A T A
SENSOR
LOGIC
J
) ...................................................................... 150 °C
J
= T
F U N C T I O N A L P I N D E S C R I P T I O N
A
+ (P
CURRENT
A
LIMIT
MBIENT
D
x θ
Integrated Products Division
JC
).
B L O C K D I A G R A M
, θ
VIN1
®
Microsemi
JA
EN1
Dual 150mA CMOS Low Dropout Regulator
D
EN2
ESCRIPTION
VIN2
206°C/W
CURRENT
P
LIMIT
RODUCTION
THERMAL
CONTROL
SENSOR
LOGIC
VOUT1
D
RoHS / Pb-free 100% Matte Tin Lead Finish
VIN2
CB1
EN2
ATA
P A C K A G E P I N O U T
NC
F R O N T M A R K I N G
x = Voltage Combination
“NC” = No Internal Connection
VREF
S
HEET
i.e. A = Adj/Adj
1
2
3
4
5
DU P
(Top View)
8221
xIDU
LX
+
-
ACKAGE
10
9
8
7
6
LX8221
VIN1
EN1
GND
ADJ
VOUT2
VOUT2
ADJ
Page 2